Zhou, WeiFischer, John EHeiney, P. AFan, H.Davis, Virginia APasquali, M.Smalley, Richard E2023-05-232023-05-232005-07-012005-07-28https://repository.upenn.edu/handle/20.500.14332/41137Liquid anhydrous sulfuric acid forms a partly ordered structure in the presence of single-walled carbon nanotubes (SWNTs). X-ray scattering from aligned fibers immersed in acid shows the formation of molecular shells wrapped around SWNTs. Differential scanning calorimetry of SWNT-acid suspensions exhibits concentration-dependent supercooling/melting behavior, confirming that the partly ordered molecules are a new phase. We propose that charge transfer between nanotube π electrons and highly oxidizing superacid is responsible for the unique partly ordered structure.Article